From TG channel War with Fakes:
Fake: A Russian tank shelled a house in Mariupol where civilians were hiding. The video was posted by the telegram channel of the Azov National Battalion, after which it was widely distributed in the pro-Ukrainian media and TG channels, including UNIAN.
Truth: The video was filmed at the scene of a battle between Russian units and soldiers of the National Battalion, who set up a firing point in one of the residential buildings. Already in the 2nd second of the video, you can see how a Russian tank was hit, presumably from a grenade launcher. Further, the combat vehicle rolls back and constantly maneuvers to protect itself from new shots. It makes no sense to perform such maneuvers if the crew is not in danger.
The active phase of the collision is also supported by the number of damaged Russian vehicles, some of which are still burning — for example, the damaged Typhoon, which is not in service with Ukraine, cannot be confused with anything else.
The video was actually edited from two parts: an episode with a shootout between a tank and the Nazis who sat in the house, and the moment when people, supposedly civilians, leave the building.
At the same time, you can notice (from 2:14) that only 4 people come out, and all of them have white armbands - most likely the soldiers of the RF Armed Forces were checking the building for the presence of the remaining snipers. If you look closely, you can also find civilians, including elderly women, leaning on sticks. However, they do not leave the building: for the entire second part of the video, they hide behind Russian equipment and the backs of Russian soldiers. After the building is checked by military personnel and it is determined that the firing point is suppressed, people are taken to a safe place under cover.
Most likely, the specified video was filmed by a Ukrainian drone - this can be understood by the fact that the Azov telegram channel acted as the primary source, two pieces were edited, as well as the constant snatching of the right moments. The full video in good quality was not uploaded for an obvious reason - even this craft can establish the nature of the fake.
Earlier, we analyzed a fake that the Russian military fired tanks at a nursing home in Kremennaya. In fact, the Ukrainian military dismissed employees and equipped a firing point in the building firing point. All patients living in the nursing home were taken hostage.